OIL AND NATURAL GAS – NEW RECORDS FOR US RESERVES
High prices and continued development of shale and tight resources drove proved reserves of both U.S. crude oil and natural gas to new records in 2017, according to EIA’s recently released U.S. Crude Oil and Natural Gas Proved Reserves report. Proved reserves of U.S. crude oil increased 19.5% from the end of 2016, reaching 39.2 billion barrels and surpassing the previous peak level of 39.0 billion barrels set in 1970. Proved reserves of natural gas increased 36.1% from the end of 2016 to reach 464.3 trillion cubic feet (Tcf) in 2017, surpassing the previous record of 388.8 Tcf set in 2014.
Proved reserves are those volumes of oil and natural gas that geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic and operating conditions. Changes in proved reserves from year to year reflect new discoveries (in new fields, new reservoirs in old fields, or extensions of existing reservoirs), net revisions and other adjustments to previous reserve estimates, and reductions from annual production of each fuel.
Texas and New Mexico had the largest net increases in proved reserves of crude oil in 2017, adding 3.1 billion and 1.0 billion barrels of proved crude oil reserves, respectively. Increases in these states were primarily the result of increased crude oil prices and development in the Permian Basin, particularly in the stacked oil-bearing formations of the Spraberry Trend and the Wolfcamp/Bone Spring shale play.
Texas had the second-largest net increase in natural gas proved reserves, with the largest portions of the increase coming from the Wolfcamp/Bone Spring shale play in the Permian Basin and the Haynesville/Bossier shale play in eastern Texas and northern Louisiana. The share of natural gas from shale increased from 62% of total U.S. natural gas proved reserves in 2016 to 66% in 2017. (Source and image: EIA)
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